Building tile or block.



. GRUMBAUGH.

BUILDING TILE OR BLOCK.

APPLICATION FILED FEB,19,1913.

flweizi or 6i? Gamawk Patented Mar. 17, 1914.

COLUMBIA PLANOORAPH cO..WAsM|NflTON. D. :4

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GEORGE P. CRUMBAUGH, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF T0 EDWIN W. GROVE, OF ST. LOUIS, MISSOURI.

BUILDING TILE OR, BLOCK.

LGENLGQL To all whom it may concern:

Be it known that I, GEORGE P. CRUM- BAUGH, a citizen of the United States, residing at St. Louis, State of Missouri, have invented new and useful Improvements in Building Tiles or Blocks, of which the following is a specification.

This invention relates to a cellular tile or building block composed of laminated strawboard paper, straw paper pulp or other suitable material embodying a plurality of air cells to receive plaster or concrete mixtures to give added strength to the tile or block.

The primary object of the invention is to produce a light, strong and economical tile or building block as a substitute for ordinary tile and lath and particularly adapted for inside work, such as partitions or analogous structures, to provide a practically dead wall of a cheap nature and thereby materially reduce the cost of erection of certain classes of buildings.

It is not the purpose of the improved tile or block to support any of the weight of a building other than the weight of the plaster covering applied thereto, as the form or support work is made as usual and the improved tile or blocks are laid in the partition just as the cheapest plaster of Paris is now used. The improved tile or blocks are laid in proper position and bound together with c ment in the same manner as the ordinary tile now in use. After the improved tile or blocks are laid, the regular plaster coat is applied and fills the air cells thereof, and the said air cells with the rough surface of the tile retain the plaster until it is set.

In the accompanying drawing a preferred form of the improved tile or blocks has been illustrated to demonstrate a practical embodiment of the invention, but it will be understood that the invention is considered as having such purview as to warrant the substitution of all reasonable equivalent structures.

In the drawing: Figure 1 is a perspective view oi a tile or block embodying the features of the invention. Fig. 2 is a transverse section taken in the plane of the line 22, Fig. 1. Fig. 3 is a longitudinal section taken in the plane of the line 33, Fig. 1, with the laminae slightly separated in part. Fig. 4 is a longitudinal section of a portion of the tile showing the laminae formed from molded paper pulp to produce Specification of Letters Patent.

Application filed February 19, 1913.

Patented Mar. 1'7, 191%. Serial No. 749,521.

the exposed air terminals. Fig. 5 is a detail sectional view similar to Fig. i showing a further modification.

I The tile or block as shown in the drawing is composed of a plurality of laminae 5 ol cheap corrugated straw board paper, and specifically each lamina comprises two opposed fiatsheets 6 and 7 with an interposed corrugated sheet 8 secured to each other by any suitable cement, such as glue 01' pitch. As shown, the components of the individual laminae are substantially L-shaped and are arranged to form overlapped or broken oints 9. By making these components l..- shaped, economy in the use of stock as well as expedition in the formation of said elements results. It is obvious that other shapes might be given the components with equal advantages in the practical service of the tile or block. The components are so cut from the corrugated stock, or so formed from other material, that the longer members at the opposite sides of the tile or block will present the exposed terminals of air passages extending transversely through the side walls of and interiorly communicating with a central open space 10 of the tile or block. The opposite ends of the tile or block are also formed with key-recesses or grooves 11 which facilitate and insure a conterminal securement of the tile or blocks by cement in building a wall or partition. The opposite sides of the tile or block are more or less roughened by the exposed terminals of the air spaces or ducts, and an adherence of the plaster or concrete composition thereto is encouraged and rendered positive.

It is proposed to treat the laminae, or the tile or block as a whole, with any suitable and well known water-proofing and fireproofing compounds as may be desired. The general proportions and dimensions of the parts of the tile or block may also be modified.

One modified form of the device is shown by Fig. 4 and consists in forming the laminae 12 from molded paper pulp to produce the air spaces or ducts in the manner similar to those shown by Figs. 1, 2 and 3, and it will also be understood that the laminae may be composed of two or more components or that it is not absolutely necessary that there be a top and bottom layer with an interposed corrugated layer, and such construction is indicated by the modification shown by Fig. 4 wherein the molded paper pulp presents a single layer; and in Fig. 5 a single strip of paper board or analogous material with a corrugated strip thereon, as at 12, constitutes the complete lamina.

It will be understood that the tile or blocks when associated in forming a partition or wall will provide a series of open passages owing to the alinement of the central open spaces 10 of the several tile or blocks, and by this means a light but sufliciently strong partition or wall of either a dead air containing or ventilating type will be pro duced.

As hereinbefore indicated, the tile, after being arranged and secured in endwise relation after the manner of assembling ordinary tile, will have a covering of plaster or cement composition applied to the opposite sides thereof by means of a, trowel and pressed into the exposed terminals of the air spaces, and by this means the said covering is firmly keyed and secured to the wall of tile or block.

What is claimed is:

1. A building tile or block having parallel sides and ends with an opening extending therethrough completely from the top to the bottom, the said tile or block being of integral construction and comprising a plurality of superposed layers of parallel members each comprising longitudinally straight flat strips with corrugated strips therebetween providing a series of openings extending fully through the opposite side portions of the tile or block and communicating with the central opening through the block, the ends of the block being closed and provided with a series of grooves forming key means to receive plastic material for uniting the ends of adjacent blocks.

2. A building tile or block having a central open space extending from the top to thebottom thereof and provided with parallel sides and ends, the block being composed of a plurality of superposed fixed layers of alternately arranged corrugated and straight strips in parallel relation and longitudinally straight relatively to each other, the corrugated and straight strips having their side edges exposed to provide openings which extend through the sides to the central open space of the block and also to form roughened surfaces for receiving and holding a plaster covering, the ends of the blocks be ing closed and having parallel grooves to form key means to receive the plastic material for uniting the ends of the block to adjacent blocks. 1

3. A building tile or block having a cen tral open space extending therethrough fully from the top to the bottom'thereof and formed with opposite parallel sides and ends and composed of a plurality of layers secured to each other to provide an integral structure, the said layersembodyingcorrugated members with flat bases with-the corrugations of the corrugated members sewitnesses. c

GEORGE P. CRUMBAUGH. WVitnesses:

AsHLEY PAPIN, WILLIAM WALSINGHAM.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington. D. G. 

